Z28JLR

When you disconnect and remove the IAC valve to clean it, when you reinstall it do you have to do any sort of recalibration/relearn procedure?
I know the TPS you have to I believe, but do you have to do anything when you remove the IAC only?

Thanks!

G Atsma

Any calibration for the IAC should be for a clean one, so if anything, a clean IAC should be better matched to the ECM than the dirty one.
IF the ECM did adapt to a dirty IAC, it will relearn to the clean one the same way. Might take a little driving time....

Z28JLR

Makes since, I appreciate it. Thank you!

slothman

disconnect the battery for 10 minutes. the computer will relearn everything in about 100-200 miles. that should be done periodically anyway. and it's a good time to clean the terminals and other wires. and test battery voltage